NJM2581 DUAL SUPPLY WIDE BAND 3ch VIDEO AMPLIFIER ■ GENERAL DESCRIPTION The NJM2581 is a dual supply voltage wide band 3ch video amplifier. It is suitable for Y, Pb, and Pr signal because frequency range is 50MHz. The NJM2581 is suitable for Set Top Box, AV amplifier, and other high quality AV systems. ■ PACKAGE OUTLINE NJM2581D NJM2581M ■ FEATURES ● Operating Voltage ±4.5 to ±5.5V ● Wide frequency range 50MHz at 0dB typ. ● Internal 6dB Amplifier ● Internal 75ΩDriver Circuit (2-system drive) ● Power Save Circuit ● Bipolar Technology ● Package Outline DIP14, DMP14 ■ BLOCK DIAGRAM VIN1 1 14 V+ 1 75Ω Driver 6dB AMP BIAS VEE1 2 13 VOUT1 VIN2 3 12 V+ 2 75Ω Driver 6dB AMP BIAS VEE2 4 11 VOUT2 VIN3 5 10 V+ 3 75Ω Driver 6dB AMP BIAS VEE3 6 PowerSave 7 REF 9 VOUT3 8 GND Ver.7 -1- NJM2581 (Ta=25°C) ■ ABSOLUTE MAXIMUM RATINGS PARAMETERS Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL +/V PD Topr Tstg ■ ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL Operating Current ICC Operating Current Isave (Power Save) Maximum Output Voltage Vom Voltage Gain Gv Band Width f Frequency Characteristic Gf Cross talk 1 CTB1 Cross talk 2 CTB2 Differential Gain DG Differential Phase DP S/N SNv Power Save Switch Change Voltage H Level Power Save Switch Change Voltage L Level *1: Refer to TEST CIRCUIT 2. RATINGS ±6.0 (DIP) 500 (DMP) 350 -40 to +85 -40 to +125 UNIT V mW °C °C + ( V =±5.0V, RL=150Ω, Ta=25°C) TEST CONDITION No signal No signal, Power Save Vin=1kHz,Sin signal, THD=1%, Vin=1MHz, 1.0Vp-p Sin signal Vin=50MHz / 1MHz, 1.0Vp-p, Sin signal Vin=4.43MHz, 1.0Vp-p, Sin signal Vin=50MHz, 1.0Vp-p, Sin signal Vin=1.0Vp-p 10step Video signal *1 Vin=1.0Vp-p 10step Video signal *1 Vin=1.0Vp-p, 100% White Video signal *1 VthPH IC Operating VthPL IC Waiting ■ MODE SWITCH FUNCTION PIN Power Save Ver.7 -2- MODE H L OPEN NOTES Power Save : OFF Power Save : ON Power Save : ON MIN. - TYP. 23.0 MAX. 33.0 UNIT mA - - 1.2 mA 7.4 6.0 - 8.0 6.4 50 0 -60 -40 0.3 0.3 6.8 -50 - Vp-p dB MHz dB dB dB % deg - 70 - dB 2.0 - V + V 0 - 0.6 V NJM2581 ■ EQUIVALENT CIRCUIT PIN No. PIN NAME FUNCTION INSIDE EQUIVALENT CIRCUIT V+ 1 3 5 VIN1 VIN2 VIN3 Input VIN1 VIN2 VIN3 100Ω 20KΩ V- V+ 13 11 9 VOUT1 VOUT2 VOUT3 Output V+ VOUT1 VOUT2 VOUT3 5.5KΩ V- V- PowerSave 30KΩ 7 PowerSave Power Save 50KΩ V- + 14 12 10 V1 + V2 + V3 V+ 2 4 6 VEE1 VEE2 VEE3 V- 8 GND GND Ver.7 -3- NJM2581 ■ TEST CIRCUIT 1 +5V + 47uF 0.1uF 0.1uF 75Ω 10uF + 75Ω 75Ω 75Ω 0.01uF 0.1uF 75Ω 0.01uF 75Ω 10uF + 0.01uF 10uF + 14 V+1 13 VOUT 12 V+2 11 VOUT 10 V+ 3 9 VOUT 8 GND VIN1 VEE1 VIN2 VEE2 VIN3 VEE3 PowerSave 1 2 3 4 5 6 7 + 0.01uF 3.3uF 0.01uF 50Ω + 3.3uF 0.1uF 0.01uF 50Ω + 3.3uF 0.1uF 0.1uF 50Ω -5V 47uF + ■ TEST CIRCUIT 2 +5V + 47uF 0.1uF 0.1uF 75Ω 0.01uF 0.01uF + 0.1uF 75Ω 75Ω 75Ω 75Ω 10uF 0.01uF + 75Ω 10uF 0.01uF 13 VOUT 12 V+2 11 VOUT 10 V+3 9 VOUT 8 GND VIN1 VEE1 VIN2 VEE2 VIN3 VEE3 PowerSave 1 2 3 4 5 6 7 + 3.3uF 0.01uF 0.1uF + 3.3uF 50Ω 0.01uF 0.1uF + 3.3uF 50Ω -5V -4- 10uF 14 V+1 50Ω Ver.7 + 0.1uF + 47uF NJM2581 ■ APPLICATION CIRCUIT +5V + 47uF 75Ω 75Ω 0.1uF 0.01uF 75Ω 75Ω 75Ω 75Ω 0.1uF 0.1uF 14 V+1 13 VOUT 12 V+2 11 VOUT 10 V+3 9 VOUT 8 GND VIN1 VEE1 VIN2 VEE2 VIN3 VEE3 PowerSave 1 2 3 4 5 6 7 + 10uF 75Ω 0.01uF 0.1uF + 10uF 75Ω 0.01uF 0.1uF + 10uF 75Ω -5V 0.1uF + 47uF Ver.7 -5- NJM2581 ■ TYPICAL CHARACTERISTICS Operating Current vs. Supply Voltage 10 40.0 5.0 35.0 Operating Current Icc(mA) Voltage Gain Gv(dB) Voltage Gain vs. Frequency 0.0 -5.0 -10 1ch 2ch 3ch -15 -20 3 100 10 6 1 10 10 10 6 30.0 25.0 20.0 15.0 10.0 3.0 6 100 10 3.5 1.0 0.5 5.0 5.5 6.0 6.5 Maximum Output Voltage Swing Vom(Vpp) Operating Current at Standby State Isave(mA) 1.5 4.5 14.0 1ch 2ch 3ch 12.0 10.0 8.0 6.0 4.0 2.0 3.0 3.5 Voltage Gain Gv(dB) Gain Frequency Characteristics Gf(dB) 1ch 2ch 3ch 7.0 6.5 6.0 5.5 4.5 5.0 5.5 + Ver.7 -6- Supply Voltage V (V) 4.5 5.0 5.5 6.0 6.5 Gain Frequency Characteristics vs. Supply Voltage 1Vpp, 1MHz sinewave signal input 4.0 4.0 Supply Voltage V (V) 8.0 3.5 6.5 + Voltage Gain vs. Supply Voltage 5.0 3.0 6.0 Total Harmonic Distortion=1%, 1kHz Supply Voltage V+ (V) 7.5 5.5 Maximum Output Voltage Swing vs. Supply Voltage (BIAS Type Input) 2.0 4.0 5.0 Supply Voltage V (V) Operating Current at Standby State vs. Supply Voltage 3.5 4.5 + Frequency (Hz) 0.0 3.0 4.0 6.0 6.5 1Vpp, 50MHz/1MHz 2.0 1ch 2ch 3ch 1.5 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2.0 3.0 3.5 4.0 4.5 5.0 5.5 + Supply Voltage V (V) 6.0 6.5 NJM2581 ■ TYPICAL CHARACTERISTICS Differential Gain vs. Supply Voltage Channel Gain Difference vs. Supply Voltage 1Vpp, 10step video signal input 4.0 0.4 0.2 0.0 -0.2 -0.4 -0.6 3.0 1ch 2ch 3ch 3.5 Differential Gain DG(%) Channel Gain Difference dGv(dB) 0.6 3.0 2.5 2.0 1.5 1.0 0.5 3.5 4.0 4.5 5.0 5.5 6.0 0.0 3.0 6.5 3.5 + 6.0 Cross Talk 1 vs. Supply Voltage 6.5 1Vpp, 4.43MHz sinewave signal input -40.0 1ch 2ch 3ch IN1OUT2 IN1OUT3 IN2OUT1 IN2OUT3 IN3OUT1 IN3OUT2 -45.0 Cross Talk 1 CTB1(dB) Differential Phase DP(deg) 5.5 Differential Phase vs. Supply Voltage 3.5 3.0 2.5 2.0 1.5 1.0 -50.0 -55.0 -60.0 -65.0 0.5 3.5 4.0 4.5 5.0 5.5 6.0 -70.0 3.0 6.5 3.5 Supply Voltage V+ (V) 100.0 -20.0 Signal to Noise Retio SNv(dB) IN1OUT2 IN1OUT3 IN2OUT1 IN2OUT3 IN3OUT1 IN3OUT2 -30.0 -35.0 -40.0 -45.0 3.5 4.0 4.5 5.0 5.5 Supply Voltage V+ (V) 4.5 5.0 5.5 6.0 6.5 Signal to Noise Retio vs. Supply Voltage 1Vpp, 50MHz sinewave signal input -25.0 4.0 Supply Voltage V+ (V) Cross Talk 2 vs. Supply Voltage Cross Talk 2 CTB2(dB) 5.0 Supply Voltage V+ (V) 4.0 -50.0 3.0 4.5 Supply Voltage V (V) 1Vpp, 10step video signal input 0.0 3.0 4.0 6.0 6.5 1.0Vpp, 100% white video signal input 1ch 2ch 3ch 90.0 80.0 70.0 60.0 50.0 40.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 + Supply Voltage V (V) Ver.7 -7- NJM2581 ■ TYPICAL CHARACTERISTICS PowerSave Switching Voltage VthP(V) PowerSave Switching Voltage vs. Supply Voltage 2.0 VthPH VthPL 1.5 1.0 0.5 0.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 Supply Voltage V+ (V) [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. Ver.7 -8-